1. Sec 7: Parabolas Homework:
1. Graph and Label all parts of 𝑦=− 𝑥 2 +2𝑥+5 using the graphing calculator
2. Practice 5-3 Worksheet #1-12
Sec 7: Parabolas
Learning Target: I will graph the equation of a parabola or write an equation given a parabola.

2. Ex 1: Parts of a Parabola and Using the Graphing Calculator
LABEL EACH OF THE FOLLOWING ON THE GRAPH . 1. x-axis, y-axis 2. x-intercept(s),y-intercept(s) 3. Vertex 4. Maximum and/or Minimum 5. The point on the graph at f(-2).

3. Ex 3: A man throws a ball several feet off the top of a building, landing after x seconds, modeled by the following:
Graph f(x) = -16x² + 33x + 46 with a domain of 0 ≤ x ≤ 5 and a range of 0 ≤ y ≤ 80.
What do each of the following represent and then label on the graph:
x-axis
y-axis
Relationship between the x and y-axis
x-intercepts
y-intercept
Vertex (tell if max or min)
f(3)

4. Parabola in Vertex Form
A parabola in vertex form is
𝑦=𝑎 𝑥 −ℎ 2 +𝑘
where (h, k) is the vertex and a is the
beginning width (similar to slope) of the
parabola.

5. Ex 4: Graph the following parabolas
𝑦=2 𝑥 −
𝑦=−3 𝑥 −1
𝑦=− 𝑥 −
* What does the negative in front of the equation do?

6. Ex 5: Write the equation of the parabola

7. You will need Graph Paper!
HOMEWORK
Graph and Label all parts of 𝑦=− 𝑥 2 +2𝑥+5 using the graphing calculator
Practice 5-3 Worksheet #1-12
You will need Graph Paper!